It's a really cool concept; like a few people I didn't understand how the sound was supposed to work in warning me against pitfalls but the feel and the look of the game was great, and even the movement was responsive (which might not seem like much but must not have been as easy at it seems :) ).
Overall a good concept that could be built on!
I also notice that the character goes white if you don't select any sense; is that on purpose?